Maryland 5 Axle Semi Truck Size and Weight Limits



Maryland: 5 Axle Semi Truck

semi truck tractor trailer

Gross Weight Limits

Ruleset Jurisdiction Permit Required? Estimated Gross *
MD Law Under 73,000 lbs Interstate and Designated No 73,000 lbs
MD Law Under 73,000 lbs Non-State Highways No 73,000 lbs
US Federal Interstate and Designated No 80,000 lbs

* This is an estimate as it does not include bridge and tire compliance.


Axle Weight Limits

Ruleset: MD Law Under 73,000 lbs

Jurisdiction: Interstate and Designated

Axle Group Tire Type Axle Spread Axle Weight Limit
Steer AxleSingle 20,000 lbs
Tandem DrivesDuals40 - 96 in 34,000 lbs
Trailer TandemDuals40 - 96 in 34,000 lbs
Trailer TandemDuals96 - 108 in 38,000 lbs
Trailer TandemDuals108 - 120 in 39,000 lbs
Trailer TandemDuals120 - 121 in 40,000 lbs

Ruleset: MD Law Under 73,000 lbs

Jurisdiction: Non-State Highways

Axle Group Tire Type Axle Spread Axle Weight Limit
Steer AxleSingle 22,400 lbs
Tandem DrivesDuals40 - 96 in 34,000 lbs
Trailer TandemDuals40 - 96 in 34,000 lbs
Trailer TandemDuals96 - 108 in 38,000 lbs
Trailer TandemDuals108 - 120 in 39,000 lbs
Trailer TandemDuals120 - 121 in 40,000 lbs

Ruleset: US Federal

Jurisdiction: Interstate and Designated

Axle Group Tire Type Axle Spread Axle Weight Limit
Steer AxleSingle 20,000 lbs
Tandem DrivesDuals40 - 96 in 34,000 lbs
Trailer TandemDuals40 - 96 in 34,000 lbs
Trailer TandemDuals96 - 108 in 38,000 lbs
Trailer TandemDuals108 - 120 in 39,000 lbs
Trailer TandemDuals120 - 121 in 40,000 lbs

Dimension Restrictions

Interstate and DesignatedNon-Designated Highways
Dimension NameMinMaxMinMax
Overall Height13' 6"
Overall LengthNo Limit
Overall Width8' 0" 8' 6"
Front Overhang3' 0" Max - Overhang cannot exceed legal length of trailer
Rear Overhang6' 0" Max - Overhang cannot exceed legal length of trailer
Semi-Trailer Length53' 0" 48' 0"
Semi-Trailer Wheelbase
- Kingpin to Center of Axles
41' 0" Max - Applies to trailers between 48' and 53'
Semi-Trailer Kingpin Setback4' 0"
Effective Rear Overhang35% of Trailer Wheelbase Max.

References


Disclaimer

These figures are interpreted from the legal codes freely available, please read our full disclaimer and inform us of any errors!